Coherent light generators – Particular beam control device – Tuning
Patent
1996-11-15
1998-05-19
Bovernick, Rodney B.
Coherent light generators
Particular beam control device
Tuning
372 5, 372 70, 372102, H01S 310
Patent
active
057545723
ABSTRACT:
A mirrorless, distributed-feedback (DFB), ultraviolet, tunable, narrow-liidth, solid state laser for remote sensing and medical applications is disclosed. Optical pumping in the DFB laser is accomplished using a frequency quadrupled, 10 Hz., Q-switched, Nd:YAG laser operating at 266 nm. The pump beam is diffracted off a grating (2400 grooves per mm.) into two parts. The two beams are subsequently recombined at the side face of the Ce:doped crystal (8 mm.times.8 mm.times.30 mm) at an angle of about 2.theta.(about 81 degrees). The resulting spatially periodic excitation within the Ce-doped gain medium due to the interferring pump beams determines the operating wavelength of the DFB laser.
REFERENCES:
patent: 5487079 (1996-01-01), Esterowitz et al.
Esterowitz Leon
Pinto Joseph F.
Bovernick Rodney B.
Jameson George
McDonnell Thomas E.
The United States of America as represented by the Sectary of th
Wise Robert E.
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